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From: Pavel Machek <pavel@ucw.cz>
To: Shem Multinymous <multinymous@gmail.com>
Cc: Henrique de Moraes Holschuh <hmh@debian.org>,
	Stelian Pop <stelian@popies.net>,
	Michael Hanselmann <linux-kernel@hansmi.ch>,
	hdaps-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org,
	lm-sensors@lm-sensors.org
Subject: Re: [Hdaps-devel] Generic interface for accelerometers (AMS, HDAPS, ...)
Date: Tue, 4 Jul 2006 12:57:11 +0200	[thread overview]
Message-ID: <20060704105711.GA13658@elf.ucw.cz> (raw)
In-Reply-To: <41840b750607040326y7bfe92dy21c6845ab034ce30@mail.gmail.com>

Hi!

> >Just use input infrastructure and be done with that? You can do
> >parking from userspace.
> 
> Will moving the hdapsd userspace daemon from sysfs polling to the
> input infrastructure cause a noticable latency increase compared to
> polling sysfs? This functionality is highly time-critical.

Well, for input you should need no polling. input tells you when data
is ready.

> BTW, can the driver tell when nothing is accessing its input device,
> and avoid polling in that case?

Ask vojtech/dmitry, I guess.
								Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  reply	other threads:[~2006-07-04 10:57 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-03 12:48 Henrique de Moraes Holschuh
2006-07-04  7:59 ` Pavel Machek
2006-07-04 10:26   ` [Hdaps-devel] " Shem Multinymous
2006-07-04 10:57     ` Pavel Machek [this message]
2006-07-04 15:02     ` Thomas Tuttle
2006-07-05  3:13     ` Dmitry Torokhov
2006-07-04 16:23   ` Henrique de Moraes Holschuh
2006-07-04 23:57     ` Pavel Machek
2006-07-05  7:34       ` Vojtech Pavlik
2006-07-05 13:58         ` Henrique de Moraes Holschuh
2006-07-06  1:12           ` Pavel Machek
2006-07-05  7:59       ` [lm-sensors] " Jean Delvare
2006-07-05  8:00   ` [Hdaps-devel] " Johannes Berg
2006-07-05 14:06     ` Henrique de Moraes Holschuh

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